Plant Marker Fun

I used several odd-ball bowls and mugs as containers for my growing herbs. I considered painting the herb name on each but thought I might want to use them for something else at a later date and wouldn't want to have to remove the paint. Instead, I will be searching for a unique way to make inexpensive plant markers to place in each with the corresponding herb name. If anyone has any good ideas, feel free to post ideas for me in the comments section. You ideas are greatly appreciated.